Brian Catterson started a Facebook group for a Husqvarna only MX race. Date is March 4-5, 2017 at Cahuilla Creek Motocross, Anza CA. More info- https://www.facebook.com/groups/1600660453564764/
Here is some GoPro video from the vintage 50+ class, race 4, second moto. I'm riding my '74 125 against mostly 250's and bigger engine sizes. View: https://youtu.be/zjCkrxtBJII